IVGCVSW-6163 Add Conv3d FrontEnd and Ref Implementation

 * Added front-end
 * Added Reference workload
 * Added Serializer & Deserializer support
 * Added unit tests
 * Added NDHWC DataLayout

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: Iec4d39e7433b5334d52fa44cf8efc6bcd39319d8
diff --git a/include/armnn/Types.hpp b/include/armnn/Types.hpp
index 2fab6b4..ef52368 100644
--- a/include/armnn/Types.hpp
+++ b/include/armnn/Types.hpp
@@ -53,7 +53,8 @@
 enum class DataLayout
 {
     NCHW = 1,
-    NHWC = 2
+    NHWC = 2,
+    NDHWC = 3
 };
 
 /// Define the behaviour of the internal profiler when outputting network details
@@ -422,6 +423,8 @@
     X(Shape) \
     X(UnidirectionalSequenceLstm) \
     X(ChannelShuffle) \
+    X(Convolution3d) \
+
 // New layers should be added at last to minimize instability.
 
 /// When adding a new layer, adapt also the LastLayer enum value in the